amethyst
background
beautiful
black
calcium
color
colorful
crystal
design
detail
druse
fluoride
fluorite
gem
gemstone
geology
green
healing
isolated
jewel
light
macro
marble
mineral
mineralogy
minerals
mining
natural
nature
object
pattern
pink
precious
purple
quartz
rock
rough
semi
semiprecious
sharp
shiny
specimen
stone
surface
texture
transparent
uncut
unpolished
violet
white